1999 Transmission & Drivetrain

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, GM, 8.5/8.6 in., 2.73 & up, Each

Part Number: ETN-913A481

4.85 out of 5 stars ( 135 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, Limited Slip, 31-Spline, Ford, 8.8 in., Each

Part Number: ETN-913A561

4.86 out of 5 stars ( 28 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 30-Spline, GM, 10.5 in. Ring Gear, 4.10 and Lower Ratios, Each

Part Number: ETN-915A545

4.58 out of 5 stars ( 12 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 28-Spline, GM 7.5 in., Each

Part Number: ETN-912A317

4.31 out of 5 stars ( 16 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, Limited Slip, 30-Spline, 3.73:1 and Down Only, Dana 44, Each

Part Number: ETN-913A589

4.78 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 33-Spline, GM, 14-Bolt, 9.5 in., Each

Part Number: ETN-914A538

4.44 out of 5 stars ( 9 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Electric Locker, 30-Spline, Dana 44, 3.92 and Numerically Higher Ratios, Each

Part Number: ETN-19969-010

4.25 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $150.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 1.370 in. Axle Shaft Diameter, 34-Spline, Ford, 9.75 in., Each

Part Number: ETN-913A477

4.71 out of 5 stars ( 14 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 35-Spline, Ford, 10.25 in./10.5 in., Full Floater Only, Each

Part Number: ETN-915A550

4.88 out of 5 stars ( 33 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 27-Spline, Dana 30, Each

Part Number: ETN-912A585

4.67 out of 5 stars ( 15 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 27-Spline, Dana 35, Jeep, Each

Part Number: ETN-912A569

4.64 out of 5 stars ( 11 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Flexplate, OE Replacement, 168-Tooth, 14.00 in. Diameter, Internal Balance, Steel, Chevy, LS, 4L80E/TH350/TH400, Each

Part Number: ADO-19260102

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Monday 11/17/2025

• $20.00 Summit Bucks

Automatic Transmission Valve Body, GM 4L80-E, 4L85-E, Performance, Each

Part Number: SOX-HP-4L80E-01

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $10.00 Summit Bucks

Shift Improver Performance Pack, 4L60E, 4L65E, 4L70E, Buick, Chevy, GMC, Oldsmobile, Pontiac, Kit

Part Number: SOX-HP-4L60E-01

5.0 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $10.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 31-Spline, Chrysler 9.25 in., Each

Part Number: ETN-913A368

4.67 out of 5 stars ( 12 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Electronic Locker, ELocker, 30-Spline, Toyota 9.5 in., Toyota, Land Cruiser 40, 60, 70, 80 Series, Each

Part Number: ETN-14212-1

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $150.00 Summit Bucks

Automatic Transmission Pan, Stock Style, Steel, Natural, Buick, Cadillac, Chevy, GMC, Oldsmobile, Pontiac, Each

Part Number: ADO-8667545

4.5 out of 5 stars ( 4 )

Estimated Ship Date: Monday 11/17/2025

• $20.00 Summit Bucks

Automatic Transmission Rebuild Kit, Master Racing, GM, 4L60E, Kit

Part Number: TCI-379110

4.65 out of 5 stars ( 20 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $30.00 Summit Bucks

Differential, Eaton Detroit Truetrac, 28-Spline, Ford, 8.8 in., Each

Part Number: ETN-912A562

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, GM 8.5/8.625 in., Buick, Cadillac, Chevy, GMC, Hummer, Isuzu, Oldsmobile, Saab, Rear, Each

Part Number: ADO-84554713

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $20.00 Summit Bucks

Automatic Transmission Pan, Steel, Natural, Chevy, GMC, Each

Part Number: ADO-24204278

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $20.00 Summit Bucks

Flexplates, GM Genuine Parts, 168-tooth, Steel, 14.13 in. Diameter, Internal Engine Balance, Buick, Cadillac, Chevy, GMC, Hummer, Pontiac, Saab, Each

Part Number: ADO-12654640

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $20.00 Summit Bucks

Automatic Transmission Valve Body, Heavy-Duty Remanufactured, Automatic Style, Cast Aluminum, Forward Shift Pattern, 4L60-E/4L65-E, Chevrolet, Kit

Part Number: SOX-GM054-HD

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Monday 11/17/2025

• Core Charge $50.00
• Free Shipping
• $10.00 Summit Bucks

Differential, Detroit Truetrac, 30-Spline, Toyota, 8.4 in., 3.54-5.29 , Each

Part Number: ETN-913A541

5.0 out of 5 stars ( 5 )

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $75.00 Summit Bucks

Differential, Electronic Locker, ELocker, 27-Spline, Dana 30, 3-Series, Each

Part Number: ETN-19818-020

Not Yet Reviewed

Estimated Ship Date: Monday 11/17/2025

• Free Shipping
• $150.00 Summit Bucks